989     if metadata is None:

   989     if metadata is None:

   990         metadata = {}

   990         metadata = {}

   991     if 'user' not in metadata:

   991     if 'user' not in metadata:

   992         metadata['user'] = repo.ui.username()

   992         metadata['user'] = repo.ui.username()

   993     useoperation = repo.ui.configbool('experimental',

   993     useoperation = repo.ui.configbool('experimental',

   996     if useoperation and operation:

   995     if useoperation and operation:

   997         metadata['operation'] = operation

   996         metadata['operation'] = operation

   998     tr = repo.transaction('add-obsolescence-marker')

   997     tr = repo.transaction('add-obsolescence-marker')

   999     try:

   998     try:

  1000         markerargs = []

   999         markerargs = []